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A.1
Watchdog Timer Initial Program
Default Value
Index
0x2E(Note1)
Data
0x2F(Note2)
LDN
Timer
0x07(Note3)
Counter
Counting
0x07(Note5)
Unit
Watchdog
Enable
0x07(Note9)
(KRST)
Timeout
0x07(Note13)
Status
Appendix A – Watchdog Timer Programming
Table 1: SuperIO Relative Register Table
SIO MB PnP Mode Index Register
0x2E or 0x4E
SIO MB PnP Mode Data Register
0x2F or 0x4F
Table 2: Watchdog Relative Register Table
Register
0x73(Note4)
0x72(Note6)
0x72(Note10)
0x71(Note14)
Note
BitNum
Value
(Note24)
7(Note7)
1(Note8)
6(Note11)
1(Note12)
0(Note15)
1
Note
Time of
watchdog
timer
(0~255)
This register is
byte access
Select time
unit.
1: second
0: minute
0: Disable
1: Enable
1: Clear
timeout status
61
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